Virtua Fighter 4 on Demul Naomi 1-2 doesn't work (Help error message)

Hi I'v been getting an error message when trying to play Virtua Fighter 4 on Naomi 2 using Demul "Unable to find 'gds-0012c.chd' in romset 'vf4'" I have every rom set and all the games in my ROM file. Does anyone know what that means? truly appreciate the help.

Hi I'v been getting an error message when trying to play Virtua Fighter 4 on Naomi 2 using Demul "Unable to find 'gds-0012c.chd' in romset 'vf4'" I have every rom set and all the games in my ROM file. Does anyone know what that means? truly appreciate the help.

Thanks

No, it is not rom set. It is like ISO but a larger file. You romset "vf4" cannot find CHD file. It should be size: 216.37 mb. You obviously doesnt have it. Google is your friend.